Device, method and movable joining apparatus for thermal joining respectively two adjacent material sheets over a connecting piece
OwnerSilvan Horand, Roger Bürglerinventors
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Abstract
A device, a method and a movable welding apparatus for thermal joining of respective two material sheets over a connecting piece arranged areally on a bottom side, wherein the material sheets are arranged with a respective side surface facing one another abutting against each other at least partially with a respective bottom side lying areally on a top side of the connecting piece are provided. In particular, the two material sheets and the connecting piece can be joined together in one pass.
Claims20
A device for thermal joining of respective two material sheets over a strip-shaped connecting piece lying areally on a bottom side, wherein the material sheets are arranged with a respective side surface facing one another abutting against each other at least partially with a respective bottom side lying areally on a top side of the connecting piece,
- wherein the device comprises a base body with a front edge, a rear edge opposite the front edge and two opposite longitudinal edges,
- wherein a top surface side and a bottom surface side opposite the top surface side of the base body respectively extend between the front edge and the rear edge as well as between the two longitudinal edges,
- wherein the top surface side, the bottom surface side, the front edge, the rear edge and the two longitudinal edges entirely border a volume of the base body,
- wherein the device is configured to be guided with the base body between the top side of the connecting piece and the bottom sides of the material sheets with the top surface side facing towards the bottom sides of the material sheets and the bottom surface side facing towards the top side of the connecting piece and can be passed,
- wherein the base body is configured to guide the material sheets at least in areas of their respective bottom sides adjacent to their side surfaces from the front edge to the rear edge over the top surface side such that the material sheets are guided starting from the front edge over at least a quarter of a maximum extension of the base body between the front edge and the rear edge with their respective side surfaces facing one another separated from one another, and
- wherein the device is configured to simultaneously heat at least partially the bottom side of the material sheets, the top side of the connecting piece and the respective side surface of the material sheets facing one another so as to produce respectively between each of the two material sheets and the connecting piece as well as between the material sheets parallel connections.
A method for joining of respective two material sheets over a strip-shaped connecting piece, comprising the steps:
- providing a connecting piece lying areally on an bottom side and two material sheets to be joined over the connecting piece, which are arranged with a respective side surface facing one another abutting against each other at least partially with a respective bottom side lying areally on a top side of the connecting piece;
- at least partial heating of the respective bottom sides of the material sheets, the side surfaces of the material sheets and the top side of the connecting piece in a connecting region such that in the connecting region between each of the material sheets and the connecting piece as well as between the material sheets simultaneously zones of partially melted and/or melted material of the material sheets and of partially melted and/or melted material of the connecting piece parallel to one another are formed in the connecting region, in particular which merge into one another without a gap;
- and
- applying pressure in the connecting region to the material sheets from their top sides immediately after the heating to simultaneously form a connection between each of the material sheets and the connecting piece as well as a further connection between the material sheets upon cooling of the by heating partially melted and/or melted material of the material sheets and the partially melted and/or melted material of the connecting piece in the zones, wherein the connections extend parallel to one another.
Dependencies are inferred from the claim text.